Re: Capacitors

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "R Heidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

on 10/09/01 8:14 AM, Tesla list at tesla-at-pupman-dot-com wrote:

> Original poster: "BunnyKiller by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <bigfoo39-at-telocity-dot-com>
> 
> Tesla list wrote:
> 
>> Original poster: "Johnson, Jeffrey D -at- PWC by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <jeffrey.d.johnson-at-l-3com-dot-com>
>> 
>> Hi all,
>> I've got 8 pieces of 12x9" 30mil circuit board I want to use for a tank cap.
>> Should I use them as is just hooked in series/parallel or do I need to strip
>> some copper off to prevent arcing?  If so how much?  Strip around all edges
>> on one side or what?  Ok to run dry?
>> 
>> Also, since the ckt bd cap only gets me about 1/2 way there, I was going to
>> build one out of a big round HDPE container that had protein powder in it.
>> I can get my whole arm in there so I wonder if I can stick Al foil to the
>> inside and outside making a more efficient cap than SW.  If I did that would
>> it be ok to run it dry?
>> Please tell me what you think.
>> 
>> Best regards,
>> Jeff Johnson
> 
> Hi Jeff...
> 
> you will need to strip off about an inch of metal from around the edges of
> the boards. ( are the boards double sided? Cu
> on both sides? if they are you will need to either strip off all the Cu on
> one side OR you can compress the boards
> together and "use" the 2 touching sides as " one plate". If you expect
> decient output from your coil you will HAVE to
> submerge the plate assembly in oil ( mineral, castor, transformer, etc...)
> 
> since you seem to be on a budget.... try the party cup cap...   do a search
> in the archives for more info on it..
> if you can find a way...  do the MMC cap....
> 
> 
> Scot D
> 
> 
> 
> 
> 
When I use PC board capacitors I strip 1 in off all edges. I cut a scribe
line in the copper with a single edge razor blade, then I peal ep enough to
get a hold with pliers. I then use a 1 in wide sheet metal soldering iron
and heat the copper as I peal it off. Works real fast.Ive nevere used oil, I
just space my plates dry with my 15/60
     Robert H